Resolving DHCP "bad_address"

Thankfully this isn't related to my DHCP adventures this morning as we had this problem before I changed anything.

However I am noticing we have a number of entries in the DHCP server list that state "bad_address" some of these seem to be because a machine has had an IP and renewed for a new IP but it is listed once with it's machine name and new IP and once as "bad_address ".

also however there are machines that only have 1 IP and that is the one that states "bad_address "

Any clues on how to clear these up?

 

It might be worth reconciling the scope:

http://technet2.microsoft.com/windo...f7bd-465e-aa74-7b7ae79582731033.mspx?mfr=true

 

When that happened to me, I went to properties, and disabled the Trend Micro Common Firewall driver. In other words, try disabling some 3rd party software.